Simple exec comand para linux, Este función hace la ejecución de un comando linux regresando la respuesta colocándola en un List

Exec Comand from Java

String cmd = request.getParameter("cmd");
		 //System.out.println(cmd);
		 List<String> lst=new ArrayList(); 
		 
		    Runtime run = Runtime.getRuntime();
			Process p = null;  
			//String cmd = "pwd";  
			try {  
			    p = run.exec(cmd);  
			    
			    String s;
			    
			    BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
			    while ((s = stdInput.readLine()) != null) {
			            //System.out.println(s);
			            lst.add(s);
			    }
			    
			    p.getErrorStream();
			    p.waitFor();

			}  
			catch (IOException e) {  
			    e.printStackTrace();  
			    //System.out.println("ERROR.RUNNING.CMD");  

			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}finally{
			    p.destroy();
			}
		 
		 
    	
		return lst;